DIY Cleaning Mass Air Flow sensor on your Volkswagen Eos to Restore Lost Power ($10 Fix to Prevent $300 Repair)

The TSI 2.0 engine in your Volkswagen Eos uses a device called mass air flow (MAF) sensor to monitor incoming air volume via the air intake system. The measurement then passed on to the engine control unit (ECU) where it could use this data to determine an efficient mixture of air-fuel ratio to the engine.

When the MAF sensor gets dirty, clogged or worn out due to harsh seasons (pollen, dust, road salt, etc…), it does not provide an accurate reading to the ECU. Consequently, your car will face a wide range of issues; some of the most noticeable problems are misfiring, sluggish acceleration, stalling, throttle hesitation, poor fuel economy. In the worst case scenario when the MAF sensor is malfunctioning, the check engine light will come up with error codes P0100, P0102, P0103, and P0104. If it has gone this far, you will have to buy a new MAF sensor.

Now it’s very easy to do maintenance on the MAF sensor and it could prevent an expensive fix for your Eos. The process will cost around $5-$30 and about 15 minutes of your time. That’s a lot better than replacing the MAF sensor at your local VW for $250+ and 3-hour wait time.

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